| Project/Area Number |
20360216
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Geotechnical engineering
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| Research Institution | Independent Administrative Institution Port and Airport Research Institute |
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Principal Investigator |
SASSA Shinji 独立行政法人港湾空港技術研究所, 地盤研究領域, 動土質研究チームリーダー (10392979)
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| Co-Investigator(Kenkyū-buntansha) |
WATABE Yoichi 独立行政法人港湾空港技術研究所, 地盤研究領域, チームリーダー (00371758)
KUWAE Tomohiro 独立行政法人港湾空港技術研究所, 沿岸環境研究領域, チームリーダー (40359229)
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| Co-Investigator(Renkei-kenkyūsha) |
HAMANO Tatsuo 徳島大学, 大学院, 教授 (90399668)
SEGUCHI Masahiro 佐賀大学, 理事 (20093974)
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| Research Collaborator |
YANG Soonbo 韓国チェジュ大学, 研究員
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| Project Period (FY) |
2008 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥13,260,000 (Direct Cost: ¥10,200,000、Indirect Cost: ¥3,060,000)
Fiscal Year 2010: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2009: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2008: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
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| Keywords | 生態地盤学 / 生物多様性 / 生態系保全・再生 / 底生生物 / 土砂物理環境 / 干潟 / 住み分け / 生物住環境診断チャート / 生態保全・再生策 |
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| Research Abstract |
By utilizing our new approach in Ecological Geotechnics, we performed a comprehensive set of field observations and surveys as well as six series of controlled laboratory experiments of benthos-soil systems in order to investigate the responses of six species of invertebrates that belonged to Arthropoda, Mollusca, and Annelida to the varying geoenvironments as manifested in the field. The results of the experiments revealed that for each of the burrowing activities, there exist optimal, transitional and critical geoenvironmental conditions, which are found to differ considerably between species, body sizes and weights. On the basis of these results, we have constructed an ecohabitat chart which enables an interspecific comparison of the burrowing performances and capabilities of the diverse benthic fauna in light of the associated geoenvironments in the field. The observed distributions of diverse benthos at various natural and artificial intertidal flats are found to be well consistent with the ecohabitat chart developed in this study.
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